Seasonal Land Use and Land Cover Mapping in South American Agricultural Watersheds Using Multisource Remote Sensing: The Case of Cuenca Laguna Merín, Uruguay
Sensors,
Год журнала:
2025,
Номер
25(1), С. 228 - 228
Опубликована: Янв. 3, 2025
Recent
advancements
in
Earth
Observation
sensors,
improved
accessibility
to
imagery
and
the
development
of
corresponding
processing
tools
have
significantly
empowered
researchers
extract
insights
from
Multisource
Remote
Sensing.
This
study
aims
use
these
technologies
for
mapping
summer
winter
Land
Use/Land
Cover
features
Cuenca
de
la
Laguna
Merín,
Uruguay,
while
comparing
performance
Random
Forests,
Support
Vector
Machines,
Gradient-Boosting
Tree
classifiers.
The
materials
include
Sentinel-2,
Sentinel-1
Shuttle
Radar
Topography
Mission
imagery,
Google
Engine,
training
validation
datasets
quoted
methods
involve
creating
a
multisource
database,
conducting
feature
importance
analysis,
developing
models,
supervised
classification
performing
accuracy
assessments.
Results
indicate
low
significance
microwave
inputs
relative
optical
features.
Short-wave
infrared
bands
transformations
such
as
Normalised
Vegetation
Index,
Surface
Water
Index
Enhanced
demonstrate
highest
importance.
Accuracy
assessments
that
various
classes
is
optimal,
particularly
rice
paddies,
which
play
vital
role
country’s
economy
highlight
significant
environmental
concerns.
However,
challenges
persist
reducing
confusion
between
classes,
regarding
natural
vegetation
versus
seasonally
flooded
vegetation,
well
post-agricultural
fields/bare
land
herbaceous
areas.
Forests
Trees
exhibited
superior
compared
Machines.
Future
research
should
explore
approaches
Deep
Learning
pixel-based
object-based
integration
address
identified
challenges.
These
initiatives
consider
data
combinations,
including
additional
indices
texture
metrics
derived
Grey-Level
Co-Occurrence
Matrix.
Язык: Английский
Estimation of the aboveground carbon stocks based on tree species identification in Saihanba plantation forest
Ecological Indicators,
Год журнала:
2025,
Номер
173, С. 113370 - 113370
Опубликована: Март 21, 2025
Язык: Английский
Exploring new mangrove horizons: A scalable remote sensing approach with Planet-NICFI and Sentinel-2 images
Ecological Informatics,
Год журнала:
2025,
Номер
unknown, С. 103152 - 103152
Опубликована: Апрель 1, 2025
Язык: Английский
Experimental studies to determine the maximum effort to extract containerized tree seedling from a cassette cell
Forestry Engineering Journal,
Год журнала:
2025,
Номер
15(1), С. 138 - 153
Опубликована: Май 12, 2025
Reforestation
works,
including
those
with
containerized
tree
seedling,
are
characterized
by
high
labor
and
en-ergy
consumption.
Currently,
planting
seedling
is
carried
out
manually
or
the
use
of
forest
plant-ing
machines
aggregated
tractors,
where
operator
feeds
seedlings
into
machine.
When
using
automatic
units
on
manipulators
harvesters
excavators,
also
extracted
manually,
indicating
de-pendence
human
factor
weaknesses
technology.
The
relevance
research
to
develop
an
auto-mated
feeding
system.
object
study
this
paper
process
extracting
from
cells
cassettes.
subject
force
arising
during
extraction
cells.
aim
work
determine
a
container-ized
cassettes
under
given
conditions,
necessary
for
development
automated
system
In
work,
influence
parameters
amount
required
extract
cell
was
investigated.
conducted
basis
universal
testing
machine
UTS-110MN-30-0U,
measurement
each
experiment
recorded
in
real
time.
Results
study:
calculation
effort
Mathcad
applied
mathematical
program
performed;
dependence
root
obtained;
maximum
minimum
value
re-quired
determined
experimentally.
obtained
results
will
be
further
used
optimize
selection
actuating
elements
developed
unit.
Язык: Английский
Research on Machine Learning-Based Extraction and Classification of Crop Planting Information in Arid Irrigated Areas Using Sentinel-1 and Sentinel-2 Time-Series Data
Lixiran Yu,
Hongfei Tao,
Qiao Li
и другие.
Agriculture,
Год журнала:
2025,
Номер
15(11), С. 1196 - 1196
Опубликована: Май 30, 2025
Irrigation
areas
in
arid
regions
are
vital
production
for
grain
and
cash
crops
worldwide.
Grasping
the
temporal
spatial
evolution
of
planting
configurations
across
several
years
is
crucial
effective
regional
agricultural
resource
management.
In
view
problems
such
as
insufficient
optical
images
caused
by
cloudy
weather
unclear
spatiotemporal
patterns
structures
irrigation
over
years,
this
study,
we
took
Santun
River
Area,
a
typical
region
Xinjiang,
China,
an
example.
By
leveraging
long
time-series
remote
sensing
from
Sentinel-1
Sentinel-2,
spectral,
index,
texture,
polarization
features
ground
objects
study
area
were
extracted.
When
analyzing
index
characteristics,
considered
widely
used
global
vegetation
indices,
including
Normalized
Difference
Vegetation
Index
(NDVI),
Enhanced
(EVI),
Soil
Adjusted
(SAVI),
Global
Environment
Monitoring
(GEMI).
Additionally,
integrated
vertical–vertical
vertical–horizontal
data
obtained
synthetic
aperture
radar
(SAR)
satellite
systems.
Machine
learning
algorithms,
random
forest
algorithm
(RF),
Classification
Regression
Trees
(CART),
Support
Vector
Machines
(SVM),
employed
structure
classification.
The
optimal
classification
model
selected
was
subjected
to
inter-annual
transfer
obtain
multiple
years.
research
findings
follows:
(1)
RF
outperforms
CART
SVM
algorithms
terms
accuracy,
achieving
overall
accuracy
(OA)
0.84
kappa
coefficient
0.805.
(2)
cropland
classified
exhibited
high
degree
consistency
with
statistical
yearbook
(R2
=
0.82–0.91).
Significant
differences
observed
estimated
cotton,
maize,
tomatoes,
wheat,
while
other
not
statistically
significant.
(3)
From
2019
2024,
cotton
remained
dominant
crop,
although
its
proportional
fluctuated
considerably,
maize
wheat
tended
remain
stable,
those
tomato
melon
showed
relatively
minor
changes.
Overall,
demonstrates
cotton-dominated,
stable
cropping
crops.
newly
developed
framework
exhibits
exceptional
precision
categorization
maintaining
impressive
adaptability,
offering
insights
optimizing
operations
sustainable
allocation
irrigation-dependent
zones.
Язык: Английский